Granted Patent
Utility
US 4,877,116 · App. 07/213,364
Hydraulic control system for a tractor transmission
Inventor:
Joachim Horsch
Patented Case
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Granted: Oct 31, 1989
Filed: Jun 30, 1988
Inventor
Joachim Horsch
Assignee (at issue)
J. I. Case Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.